American Conference of Governmental Industrial Hygienists

Acceptable Daily Intake

Absorption, Distribution, Metabolism, and Excretion

alkali flame ionization detector

Air Force Office of Safety and Health

acute myeloid leukemia

Association of Official Analytical Chemists

atmosphere

Agency for Toxic Substances and Disease Registry

Ambient Water Quality Criteria

Best Available Technology

bioconcentration factor

Biological Exposure Index

Board of Scientific Counselors

Centigrade

Clean Air Act

Cancer Assessment Group of the U.S. Environmental Protection Agency

Chemical Abstract Services

Centers for Disease Control and Prevention

Cancer Effect Level

Computer-Environmental Legislative Data System

Comprehensive Environmental Response, Compensation, and Liability Act

Code of Federal Regulations

curie

ceiling limit value

Contract Laboratory Program

centimeter

chronic myeloid leukemia

central nervous system

Consumer Products Safety Commission

Clean Water Act

day

dermal

Department of Health, Education, and Welfare

Department of Health and Human Services

deoxyribonucleic acid

Department of Defense

Department of Energy

Department of Labor

Department of Transportation

Department of Transportation/United Nations/

North America/International Maritime Dangerous Goods Code

Drinking Water Exposure Level

electron capture detection

electrocardiogram

electroencephalogram

Emergency Exposure Guidance Level

Environmental Protection Agency

Fahrenheit

first-filial generation

Food and Agricultural Organization of the United Nations

Food and Drug Administration

Federal Emergency Management Agency

Federal Insecticide, Fungicide, and Rodenticide Act

flame photometric detection

feet per minute

foot

Federal Register

gram

gas chromatography

gestational day

generation

gas liquid chromatography

gel permeation chromatography

high-performance liquid chromatography

hour

high resolution gas chromatography

Hazardous Substance Data Bank

Immediately Dangerous to Life and Health

International Agency for Research on Cancer

International Labor Organization

inch

Integrated Risk Information System

adsorption ratio

kilogram

metric ton

organic carbon partition coefficient

octanol-water partition coefficient

liter

liquid chromatography

lethal concentration, low

lethal concentration, 50% kill

lethal dose, low

lethal dose, 50% kill

lethal time, 50% kill

lowest-observed-adverse-effect level

Levels of Significant Exposure

meter

trans,trans-muconic acid

Maximum Allowable Level

millicurie

Maximum Contaminant Level

Maximum Contaminant Level Goal

milligram

minute

milliliter

millimeter

millimeters of mercury

millimole

month

millions of particles per cubic foot

Minimal Risk Level

mass spectrometry

National Ambient Air Quality Standard

National Academy of Science

National Air Toxics Information Clearinghouse

North Atlantic Treaty Organization

normochromatic erythrocytes

National Cancer Institute

National Institute of Environmental Health Sciences

National Institute for Occupational Safety and Health

NIOSH’s Computerized Information Retrieval System

National Fire Protection Association

nanogram

National Library of Medicine

nanometer

National Health and Nutrition Examination Survey

nanomole

no-observed-adverse-effect level

National Occupational Exposure Survey

National Occupational Hazard Survey

nitrogen phosphorus detection

National Pollutant Discharge Elimination System

National Priorities List

not reported

National Research Council

not specified

New Source Performance Standards

National Technical Information Service

National Toxicology Program

Office of Drinking Water, EPA

Office of Emergency and Remedial Response, EPA

Oil and Hazardous Materials/Technical Assistance Data System

Office of Pesticide Programs, EPA

Office of Prevention, Pesticides and Toxic Substances, EPA

Office of Pollution Prevention and Toxics, EPA

Occupational Safety and Health Administration

Office of Solid Waste, EPA

Office of Toxic Substances

Office of Water

Office of Water Regulations and Standards, EPA

Polycyclic Aromatic Hydrocarbon

Physiologically Based Pharmacodynamic

Physiologically Based Pharmacokinetic

polychromatic erythrocytes

permissible exposure limit

photo ionization detector

picogram

picomole

Public Health Service

proportionate mortality ratio

parts per billion

parts per million

parts per trillion

Pretreatment Standards for New Sources

recommended exposure level/limit

Reference Concentration

Reference Dose

ribonucleic acid

Registry of Toxic Effects of Chemical Substances

Reportable Quantity

Superfund Amendments and Reauthorization Act

sister chromatid exchange

second

Standard Industrial Classification

selected ion monitoring

Secondary Maximum Contaminant Level

standard mortality ratio

Suggested No Adverse Response Level

Short-Term Public Emergency Guidance Level

short-term exposure limit

Storage and Retrieval

toxic dose, 50% specific toxic effect

threshold limit value

Total Organic Compound

Threshold Planning Quantity

Toxics Release Inventory

Toxic Substances Control Act

Toxics Release Inventory

time-weighted average

United States

uncertainty factor

Volatile Organic Compound

year

World Health Organization

week

greater than

greater than or equal to

equal to

less than

less than or equal to

percent

alpha

beta

gamma

delta

micrometer

microgram

cancer slope factor

negative

positive

weakly positive result

weakly negative result